package shiyan1;

public class Test {
    public static void main(String[] args) {
        Shape s1=new Circle(1);
        Shape s2=new ZhengFangXing(1);
        Shape s3=new JuXing(1,2);
        Shape s4=new TuoYuan(1,2);
        s1.calS();
        s2.calS();
        s3.calS();
        s4.calS();
    }
}
